Under The Paw, Talk To The Tail and The Good The Bad And The Furry
The above 3 books work as one collective memoir by the writer Tom Cox about cats he has owned, part owned, and been acquainted with throughout the years. They include Roscoe, Shipley, Brewer, George, Bootsy, Pablo, and famous in their own right : The Bear who is better known as @MYSADCAT, a misanthrope who despairs of the modern world and his frenemy Ralph @MYSMUGCAT who is better than you and knows it, though he can't quite live down the fact that he was once known as Prudence.
I have always wanted and never had a cat, and as complicated yet adorable as Tom Cox's cats appear to be, one of the episodes he recounts of cat ownership includes dealing with a large pool of catpiss on his duvet as well as catpiss on books and catpiss on records. I just couldn't deal with catpiss on my duvet, so I'm guessing cat ownership is not for me.
Despite this the books are endearing and warm though Talk The Tail wanders off topic frequently with stories that are not about the cats and therefore not quite what you came for. These books are 'nice' and are funnier than many books marketed as comic in the way that Cox presents his relationship with them and their relationships with each other.
I think the key word here is undemanding, they are good books to relax with, good for Sunday afternoons, travelling, and perfect presents for the cat lovers in your life.